Dr. Sanchez is a behavioral psychologist who studies learning and memory in rats. Because rats are most active at night, she asks the animal resource facility to reverse their lightdark cycle to accommodate her experiments. However, the animal facility is reluctant to disrupt the rats current ____, which lasts for about a day.
a. circadian rhythm
b. cerebrodynamic cycle
c. chronometric temperance
d. contrast arousal
Question 2
Jonah and Eli are having a conversation about how the brain works. Jonah maintains that the brain must be much more active when a person is focused and attending to a problem, while Eli points out that the brain operates with the same activity no matter how focused a person is. Who is right?
a. Neither is right, because the brain exhibits about 5 more activity when a person is focused compared to when they are unfocused.
b. Jonah is right, as the brain shows between an 80 and 85 increase in activity when a person is focused compared to when they are unfocused.
c. Eli is right, because the brain activity level does not change at all when a persons focus level changes.
d. Neither is right, because the brain actually exhibits 10 to 15 lessactivity when a person is focused compared to when they are unfocused.
Operant conditioning, also known as trial-and-error learning.
Learning without Reinforcement (2 of 2)
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